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RU-2861320-C2 - PLANT GROWTH REGULATOR (VARIANTS), ITS APPLICATION, PLANT GROWTH STIMULATION METHOD, AND PLANT GROWTH REGULATOR PRODUCTION METHOD

RU2861320C2RU 2861320 C2RU2861320 C2RU 2861320C2RU-2861320-C2

Abstract

FIELD: agriculture. SUBSTANCE: invention relates to plant growth regulators. One embodiment of a plant growth regulator comprises a compound represented by formula (I) wherein each of R 1 and R 2 is a hydrogen atom and each of R 3 -R 5 is methyl, or a tautomer thereof, or an agronomically acceptable salt thereof; and at least one component A selected from the group consisting of a nucleic acid base, a vitamin, a sugar alcohol, arginine, lysine, valine, leucine, phenylalanine, tyrosine, tryptophan, serine, glutamine, asparagine, methionine, histidine, cysteine, 5-aminolevulinic acid, ornithine, carnitine, acetic acid, citric acid, maleic acid and trehalose. A second embodiment of a plant growth regulator comprises glycine betaine as component A. EFFECT: increase in the weight and height of the above-ground part of the plant, as well as the weight of the underground part of the plant. 10 cl, 18 tbl, 18 ex

Inventors

  • KOSHIYAMA, Tatsuyuki
  • HIGASHIYAMA, YUKIHIRO

Dates

Publication Date
20260504
Application Date
20230703
Priority Date
20220706

Claims (15)

  1. 1. A plant growth regulator containing a compound represented by formula (I)
  2. where each of R 1 and R 2 represents a hydrogen atom and each of R 3 -R 5 represents methyl, or a tautomer thereof, or an agronomically acceptable salt thereof;
  3. and at least one component A selected from the group consisting of a nucleic acid base, a vitamin, a sugar alcohol, arginine, lysine, valine, leucine, phenylalanine, tyrosine, tryptophan, serine, glutamine, asparagine, methionine, histidine, cysteine, 5-aminolevulinic acid, ornithine, carnitine, acetic acid, citric acid, maleic acid and trehalose.
  4. 2. A plant growth regulator according to claim 1, characterized in that component A is selected from a nucleic acid base, a vitamin, or a sugar alcohol.
  5. 3. A plant growth regulator according to claim 1 or 2, characterized in that the nucleic acid base is guanine, thymine or uracil.
  6. 4. A plant growth regulator according to claim 1 or 2, characterized in that the vitamin is vitamin B1 or vitamin D2.
  7. 5. A plant growth regulator according to claim 1 or 2, characterized in that the sugar alcohol is inositol.
  8. 6. A plant growth regulator according to paragraph 1 or 2, characterized in that it is used to increase the seed yield, to increase the height of the plant, to increase the number of flowers, to increase the mass of the above-ground part or the underground part of the plant.
  9. 7. A plant growth regulator for increasing seed yield, containing a compound represented by formula (I)
  10. where each of R 1 and R 2 represents a hydrogen atom and each of R 3 -R 5 represents methyl, or its tautomer, or an agronomically acceptable salt thereof, and glycine betaine.
  11. 8. Use of a plant growth regulator containing a compound represented by formula (I)
  12. where each of R 1 and R 2 represents a hydrogen atom and each of R 3 -R 5 represents methyl, or its tautomer, or an agronomically acceptable salt thereof, and a component A selected from glutamic acid or proline, for increasing the mass of the above-ground part or underground part of the plant.
  13. 9. A method for stimulating plant growth, comprising treating the plant with a plant growth regulator according to any one of claims 1-8.
  14. 10. A method for producing a plant growth regulator according to any one of claims 1-8, comprising mixing a compound represented by formula (I)
  15. wherein each of R 1 and R 2 represents a hydrogen atom and each of R 3 -R 5 represents methyl, or its tautomer, or an agronomically acceptable salt thereof, and at least one component A selected from the group consisting of a nucleic base, a vitamin, a sugar alcohol, arginine, lysine, valine, leucine, phenylalanine, tyrosine, tryptophan, serine, glutamine, asparagine, methionine, histidine, cysteine, 5-aminolevulinic acid, ornithine, carnitine, acetic acid, citric acid, maleic acid, trehalose, glycine betaine, glutamic acid and proline.

Description

[Field of TECHNOLOGY] [1] The present invention relates to plant growth regulators for increasing seed yield, to their use for increasing the mass of the above-ground part or underground part of a plant, to a method for stimulating plant growth and to a method for producing a plant growth regulator. [State of the art] [2] There is a need for an agent that has a stimulating effect on plant growth and is applicable to a wide range of plants. Ergothioneine, for example, is known as such an agent. [3] Patent Document 1 describes a fertilizer containing ergothioneine or a culture product of microorganisms that can biosynthesize ergothioneine. [4] Patent documents 2 and 3 describe the use of 2-mercaptohistidine betaine, which is ergothioneine, to a plant. It is described that this application can control stress and stress-related conditions in plants, and can also promote plant growth. [5] Patent Document 4 describes the use of the simple substance ergothioneine on plants. It is also described that said use stimulates plant growth or increases crop yield. [6] Patent document 5 describes the use of a microorganism extract containing ergothioneine as an antioxidant necessary for the absorption of methanol as a fertilizer. It is described that this use increases nitrogenase activity. [List of bibliographic references] [Patent document] [7] Patent Document 1: JP 2018-130091 A Patent Document 2: WO 96/14749 Patent Document 3: WO 96/23413 Patent Document 4: WO 2021/005970 Patent Document 5: EP 3696154 A [ESSENCE of the invention] [Technical challenge] [8] However, the known agents may not have sufficient growth promoting effect, and there is a need to develop a plant growth regulator exhibiting superior growth promoting effect. [9] The present invention has been developed in view of the above object, and an object of the present invention is to provide a plant growth regulator with an excellent plant growth promoting effect. [Problem solution] [10] As a result of careful investigation, the present inventors found that a plant growth regulator containing ergothioneine and the specific component A has an excellent plant growth promoting effect compared with using ergothioneine alone. Furthermore, the present inventors found that the plant growth regulator has an excellent plant growth promoting effect relative to the theoretical plant growth promoting effect obtained by mixing ergothioneine with the specific component A, and completed the present invention. [11] In a first aspect of the present invention, there is provided a plant growth regulator comprising: a compound represented by formula (I) , where each of R 1 and R 2 represents a hydrogen atom and each of R 3 -R 5 represents methyl, or a tautomer thereof, or an agronomically acceptable salt thereof; and at least one component A selected from the group consisting of a nucleic acid base, a vitamin, a sugar alcohol, arginine, lysine, valine, leucine, phenylalanine, tyrosine, tryptophan, serine, glutamine, asparagine, methionine, histidine, cysteine, 5-aminolevulinic acid, ornithine, carnitine, acetic acid, citric acid, maleic acid and trehalose. [12] In a preferred embodiment, component A is selected from a nucleic acid, a vitamin, or a sugar alcohol. [13] In a preferred embodiment, the nucleobase is guanine, thymine or uracil. [14] In a preferred embodiment, the vitamin is vitamin B1 or vitamin D2. [15] In a preferred embodiment, the sugar alcohol is inositol. [16] In a preferred embodiment, the plant growth regulator is used to increase seed yield, to increase plant height, to increase the number of flowers, to increase the mass of the above-ground part or the underground part of the plant. [17] In a second aspect of the present invention, there is provided a plant growth regulator for increasing seed yield, comprising a compound represented by formula (I) , where each of R 1 and R 2 represents a hydrogen atom and each of R 3 -R 5 represents methyl, or its tautomer, or an agronomically acceptable salt thereof, and glycine betaine. [18] In a third aspect of the present invention, there is provided the use of a plant growth regulator comprising a compound represented by formula (I) , where each of R 1 and R 2 represents a hydrogen atom and each of R 3 -R 5 represents methyl, or its tautomer, or an agronomically acceptable salt thereof, and a component A selected from glutamic acid or proline, for increasing the mass of the above-ground part or underground part of the plant. [19] In a fourth aspect of the present invention, a method for stimulating plant growth is provided, comprising treating a plant with the above-mentioned plant growth regulator. [20] In a fifth aspect of the present invention, there is provided a method for producing the above plant growth regulator, comprising: mixing a compound represented by formula (I) , wherein each of R 1 and R 2 represents a hydrogen atom and each of R 3 -R 5 represents methyl, or its tautomer, or an agronomically acceptabl